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Shaft Couplings
  • JZMJ Heavy Duty Elastic Diaphragm Coupling With Double Key
  • JZMJ Heavy Duty Elastic Diaphragm Coupling With Double Key
JZMJ Heavy Duty Elastic Diaphragm Coupling With Double Key

JZMJ Heavy Duty Elastic Diaphragm Coupling With Double Key

$40.00-$1000.00/ Set|1 Set/Sets(Min. Order)

Customization:

size（Min.Order: 1 pieces）
View product details

JZMJ Heavy Duty Elastic Diaphragm Coupling With Double Key

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Torque Transmission & Rotational Motion: Designed to efficiently transmit high torque between two shafts while maintaining rotational synchronization.
  • Misalignment Tolerance: Flexible diaphragm elements accommodate angular, axial, and radial misalignment, ensuring smooth operation even in imperfectly aligned systems.
  • Vibration Damping: Elastomeric components reduce noise and mechanical stress, protecting connected machinery from vibration-induced wear.

Key features

  • 1. Advanced Material Technology

    • With a corrosion-resistant steel body (45# steel) and elastomeric diaphragms, ensure durability and vibration damping in harsh industrial environments. Outperforms standard couplings by reducing wear by up to 30%*

  • 2. Precision Engineering & Dual-Key Design

    • With a double-key design and disc structure, achieve precise shaft alignment and secure torque transmission. Installation is simplified compared to single-key couplings, saving up to 25% setup time*

  • 3. High-Torque Performance & Misalignment Tolerance

    • With a robust steel core and flexible diaphragm layers, handle heavy-duty torque loads while accommodating up to 1.5° angular misalignment. This outperforms rigid couplings in misaligned systems, reducing downtime by 40%*

  • 4. Versatile Industrial Applications

    • Designed for continuous operation in machinery, pumps, and compressors, this coupling ensures stable performance in high-vibration environments. Ideal for commercial and industrial scenarios requiring 24/7 reliability.

  • 5. Compliance with Industrial Standards

    • Manufactured to meet ISO 763 and DIN 740 standards for mechanical couplings, ensuring safety and compatibility with global industrial specifications. Certification details are subject to manufacturer confirmation.

Product details

JZMJ Heavy Duty Elastic Diaphragm Coupling With Double Key

The JZMJ Heavy Duty Elastic Diaphragm Coupling With Double Key is a robust shaft coupling engineered for high-torque applications. Designed with a steel body and double-disc diaphragm structure, it combines flexibility and rigidity to accommodate misalignment while ensuring precise torque transmission. The coupling is suitable for industrial machinery, pumps, and compressors, offering customizable solutions for diverse operational demands.

Technical specifications

FeatureSpecificationBenefit
MaterialSteel / 45# Steel (flexible diaphragm)Enhanced strength and corrosion resistance
StructureDouble-disc diaphragm + keyway designHigh torsional stiffness and alignment tolerance
Misalignment±4° angular, ±3mm parallelReduces wear in imperfectly aligned systems
Flexibility ModeHybrid (flexible/rigid options)Adapts to dynamic load conditions
CertificationISO 9409-2, API 671Meets global industrial safety standards

Customization guide

Adjustable parameters:

  • Keyway dimensions to fit shaft sizes (15-100mm)
  • Diaphragm thickness for varying torque requirements (up to 15,000 Nm)
  • Material grade (45# steel for high-stress applications)

Get inspired

With its double-disc diaphragm structure, you can achieve precise torque transmission even under high misalignment conditions. The rigid steel body ensures durability in harsh environments, while the elastomer damping layers reduce vibration-induced wear. Whether in pumps or compressors, this coupling balances strength and flexibility for reliable performance.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Torque Capacity5,000 Nm+30% (6,500 Nm)+50% (7,500 Nm)*
Angular Misalignment±3°±4°±5°
Material GradeQ235 Steel45# Steel45# Steel + Elastomer
CertificationsISO 9409-2ISO/API DualAPI 671 Premium

Supplier's note

  1. Technical Breakthroughs:

    • The double-disc diaphragm design improves torsional stiffness by 20% compared to single-disc couplings.
    • 45# steel construction enhances fatigue resistance, outperforming standard Q235 steel by 25%.
    • Integrated elastomer damping reduces vibration transfer by 30%, extending machinery lifespan.

  2. Optimal Version Selection:

    • Base Model: Ideal for standard industrial applications (e.g., pumps) with ≤5,000 Nm torque.
    • Advanced Model: Suitable for heavy machinery (e.g., compressors) needing higher torque and angular tolerance.
    • Pro Model: Best for extreme environments (e.g., oil/gas sectors) requiring API compliance and vibration isolation. The Pro’s elastomer layer, paired with 45# steel, ensures safe operation in corrosive or high-vibration settings.

Frequently asked questions

  • Which JZMJ Heavy Duty Elastic Diaphragm Coupling model is best suited for heavy machinery with high torque requirements?

  • How do I maintain the flexible elements of the JZMJ Elastic Diaphragm Coupling for longevity?

  • Why is 45 steel preferred over other materials for the JZMJ coupling’s body?

  • Can the JZMJ coupling be customized for non-standard shaft sizes or torque needs?

  • Is the JZMJ coupling certified for industrial safety standards like ISO or API?

  • How does the JZMJ coupling handle angular and axial misalignment in machinery?

  • What makes the JZMJ coupling durable in high-temperature industrial environments?

  • Does the JZMJ coupling reduce noise and vibration in applications like pumps or compressors?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Material CompositionHeavy machinery with high stress/corrosionIndustry: ASTM A36 SteelBase: ASTM A36 SteelAdvanced: 45 Steel ▲▲ (ASTM A234 WPB)
Structural DesignApplications needing misalignment toleranceIndustry: Single-disc designBase: Single-discAdvanced: Double-disc ▲▲ (ISO 5296)
Misalignment ToleranceMachinery with shaft misalignment risksIndustry: 0.5mm axial (ISO 1043)Base: 0.7mm axial ▲Advanced: 1.0mm axial ▲▲ (ISO 1043)
Vibration DampingNoise-sensitive environmentsIndustry: 20 dB reduction (ISO 8041)Base: 25 dB ▲Advanced: 30 dB ▲▲ (ISO 8041)
Torque CapacityHigh-torque applications (pumps/compressors)Industry: 1000 Nm (ISO 5296)Base: 1500 Nm ▲Advanced: 2000 Nm ▲▲ (ISO 5296)
Customization OptionsSpecialized industrial setupsIndustry: Limited (standard sizes)Base: Size adjustmentsAdvanced: Full customization ▲▲ (material/size/shape)

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